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Recently, α-glucosidase inhibitor has been widely used in clinic for diabetic therapy. In the present study, a facile and sensitive fluorescent assay based on enzyme activated inner filter effect (IFE) on nitrogen-doped carbon dots (CDs) was first developed for the detection of α-glucosidase. The N-doped CDs with green emission were prepared by a one-step hydrothermal synthesis and gave the fluorescence...
A rapid, facile and ultrasensitive fluorescence sensing system based on nitrogen-doped carbon dots (N-doped CDs) for the detection of ascorbic acid (AA) was developed. The highly photoluminescent N-doped CDs with excellent solubility in water and good biocompatibility were prepared by a one-step hydrothermal synthesis and gave the fluorescence quantum yield of 47%. The addition of AA can intensively...
Using sterculia lychnophora seeds as precursors for the first time, fluorescent carbon dots (CDs) were synthesized by simple hydrothermal treatment. The quantum yield of as-synthesized CDs was 6.9% by using quinine sulfate as the reference. The fluorescence of CDs could be effectively quenched by a MnO2 nanosheet based on fluorescence resonance energy transfer (FRET). Ascorbic acid (AA) could reduce...
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